Governor for internal-combustion marine motors.



A. WINTON.

GOVERNOR FOR INTERNAL COMBUSTION MARINE MOTORS.

APPLICATION FILED APR.11,1911.

1,031,228. Patented July 2, 1912.

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Elude/WW1 ALEXANDER WINTON, OF CLEVELAND, OHIO.

GOVERNOR FOR INTERNAL-COMBUSTION MARINE MOTORS.

Specification of Letters Patent.

Patented July 2,1912.

Application filed April 11, 1911. Serial No. 620,464.

racing of the motor when it is started without load; when the load isrelieved by reason of the propeller being out of the water in a heavysea; and when the load is removed by passing from forward to reverse ofthe propeller through a transmission mechanism as usual in suchcontrols, and

when the load is removed byplacing the transmission mechanism at neutraland the propeller is not revolving.

My present invention pertains to a governor which automatically controlsthe speed of, the engine and consequent injury by racing thereof,whenever the load is removed therefrom as hereinafter stated.

In the accompanying drawing is a side elevation of my improved governor,shown partly in section;

Referring now to the drawings, 1 represents one of the cylinders of aninternal combustion motor, and 2 the cam-shaft thereof, which as is wellknown revolves at half the speed of the crank-shaft (not shown) of theengine.

My improved governor comprises a shaft 3, and this shaft is operativelyconnected with the motor in any desired manner. As here shown the shaft3 is provided with a bevel gear 4, which meshes with a bevel gear 5 onthe cam-shaft 2, but twice the size of the gear 4, so that the gear 4and the shaft 3 are driven at a speed correspondmg with the speediof themotor crank-shaft (not shown).

To enable the speed of the shaft 3, and thereby the speed of the motorto be determined at all times, a tachometer 5 1s oper- 'ativelyconnected with the shaft 3. This forms no part of my governor, butenables the engineer or operator to cause the motor to run at anyadjustedspeed by means of the governor as will appear fully hereinafter.The said shaft 3 1s'journaled at its ends in suitable bearings 6 and 7.A ball thrust collar or hearing 8 is attached to the lower end of theshaft 3, and between it and the bearing 7, of any well known form. Aspring 9 surrounds the lower portion of the shaft 3, having its lowerend connected with the shaft by means of a collar 10. The upper end ofthis spring bears against the under side of a grooved ring or base 11.The outer end of a lever 12 engages the groove a in said ring 11, isintermediatcly pivotally supported at 13, and has pivoted to its innerend a link 14. A bell-crank lever 15 has one end pivoted to the oppositeend of said link 14, and the other end of the bell-crank lever ispivoted to a link 16, the opposite end of the link being pivoted to thethrottle lever 17 of a throttle 18, which cont-rols the speed of themotor in the well known way. This throttle is located in a pipe orpassage 19 through which the explosive mixture passes to the motorcylininders. I

A centrifugally actuated weight governor A is provided and in which thelower head 20 is either attached to or rests upon the grooved ring 11,and to which the lower 27, which slides on the rod 3, and this crossheadis connected to the head 20, by means of the rod 26. The heads 20 and 27are both loose and slidable upon the rod 3. A spring 28 surrounds therod 3 above the head 27 and has its lower end resting on the head 27,with a ball thrust bearing 29 resting on the upper end of the spring.The other member 30 of this ball thrust bearing is engaged by the lowerend 31 of an L-shaped controlling lever 32 intermediately pivoted at 33,in a suitable support or bracket 34. A handle 35 is formed on the end ofthis lever, and the lever is adapted to be locked in its adjustedpositions in any suitable manner. As here shown this locking is effectedby the well-known thumb-screw 36, which passes through the lever and acurved slot 37.

The upper spring 28 is much stronger or stifier than the lower'spring 9,while the latter is just strong enough to lift the ring ll'and theweighted arms when relieved of the pressure of thestronger spring 28above.

The operation of the governor is as fol lows: The motor is started withthe throttle 18almost closed. To effect this, the lever 32 is moved overto the right, (directly opposite to that indicated by arrow), whichrelieves the downward pressure of the heavy spring 28, and the lowerspring 9, through the ring 11, forces the toggle levers and weightsoutward to their limit of movement and nearly closes the throttle. Withthe parts in this position, the toggle levers can not move outwardfarther -under cen-' rows) and the lever 32 is adjusted until thetachometer indicates the. desired speed of the motor, for instance, 350R. P. M. The

" motor will now be held at this regulated the heavy spring 28.willforce the heads 27 speed, with and. without load. If a load is put onthe motor and it is slowed up any,

and 20 down and open the throttle'more to take care of .the load. On theother hand, if the load is removed for any of the reasons hereinbeforementioned, the parts will -move in the opposite direction and close thethrottle and prevent the motor from racing. By reason of this operation,the governor will keep the motor approximately at a uniform speed withand without load. It will also be understood that when it is desired tosuddenly or gradually either increase or decrease the speed of' themotor above say, the regulated speed of 350 R. P. M., it is accomplishedthrough the movement of the L-shaped controllinglever 32 in the properdirection to effect the desired result.

Having 'thus described my invention, What I claim and desire to secureby Letters Patent is 1. A governor of thetype described, comprising arotating shaft, a centrifugal governor on said shaft, a manuallyvadjust-able spring acting in opposition tothe centrifugal action of thegovernor, and a relatively lighter spring acting in the direction of thecentrifugal action of the governor.

2. A governor of the type described, comprising a rotating shaft, acentrifugal governor having one end connected with said shaft, a heavyspring acting against the free end of the governor and in opposition tothe centrifugal movement thereof, a relatively lighter spring alsoacting against the free end of the governor and 111 the direction of thecentrifugal movement of the governor, and means for adjusting the pres-'sure of the heavy spring against the free end of said governor.

In testimony whereof I hereunto aflix mysignature in the presence of twowitnesses. ALEXANDER WINTON. VVit-nesses Y I -W. J. WARD,

DODDRIDGE.

